sync only existing contacts facebook,but syncs all contacts to my contact list

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http://forum.xda-developers.com – when i sign in my facebook account on my phone it asks me wether to sync all facebook friends, sync only with existing contacts or don't sync, i choose with exsisting contacts,but facebook syncs with all my friends from facebook even some without numbers. And all i want with the sync is for my friends to their facebook pictures, but they don't. How to sync my contacts to have pictures? (HowTos)